Vulnerability in Imagemagick
CVE-2026-61866
ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the JNG encoder when a blob cannot be opened. Attackers can trigger the memory leak by providing malformed JNG files that fail blob operations, causing resource exhaustion.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (7.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.002 · change: -0.001
Affected products
- Imagemagick — versions 0, 7.1.2-26
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-99w9-hv66-rfv7 (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-jng-encoder (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-61866?
- CVE-2026-61866 is a low-severity vulnerability in Imagemagick, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 2.9/10. Published 2026-07-15.
- How severe is CVE-2026-61866?
- Low severity. CVSS v3 base score is 2.9 out of 10.